Client-side / browser-initiated / bookmarklet image gallery
Remove all line breaks or pass this through a minifier like http://refresh-sf.com/ (optionally wrapped in a function(){} to let it rewrite top-level variables/functions as well), then paste into the address bar of some web page (primarily some "index of /blah") prefixed by "javascript:".
To further aid minification that doesn't seem to be happening in the automatic minifiers I've tried, create functions to hold long and commonly used native methods (like document.getElementByTagName()).